Boat.



S. TAGLIAMONTE.

BOAT.

APPLICATION FILED JAN. 17, 1912.

1,072,270. Patented Sept. 2, 1913,

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BOAT.

APPLICATION FILED JAN. 17, 1912.

1,072,270. Patented Sept. 2, 1913.

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SILVERIO TAGLIAIVIONTE, or SOMERVILLE, MASSACHUSETTS.

BOAT.

Specification of Letters Patent.

Patented Sept. 2, 1913.

Application filed January 17, 1912. Serial No. 671,657.

To all whom it may concern,

Be it known that I, Sinvnmo TAGMN MONTE, a citizen of Italy, residing at Somerville, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Boats, of which the following is a specification.

An object of the invention is to provide a boat that can be easily and smoothly propelled.

My invention embodies among other features, a boat provided with a plurality of propellers arranged to cooperate, one of the propellers being placed near the stern of the vessel. to propel the same through the water and the other propeller being arranged beneath the vessel to raise the bow thereof, thus lessening the resistance of the water and avoiding the large waves which usually strike the bow of the vessel a direct blow and hinder the progress of the boat. Furthermore in stormy weather the rear or driving propeller tends to project from the water at various intervals, due to large waves and when this occurs the resistance of the water on the propeller being removed, the said driving propeller tends to attain an unusually high speed without performing any work, whereas the lifting propeller being at all times beneath the surface of the water will tend to propel the heat, while at the same time the propelling action of the propeller will cause the bow of the boat to be raised as mentioned heretofore. For the purpose mentioned, use is made of a hull, a driving propeller mounted at the rear end of the hull, a lifting propeller mounted beneath the hull, means for operating the said propellers and a skeleton guard secured to the hull and arranged to inclose the pro peller-s.

Reference is to be had to the accompanying drawings constituting apart of this specification, in which similar characters of reference denote corresponding parts in all the views and in which- Figure 1 is a side elevation of my boat, parts being broken away to disclose the underlying structure. Fig. 2 is a bottom plan view. Fig. 3 is a vertical sectional view taken on the line 3-3 in Fig. 1, looking in the direction of the arrow.

Referring more particularly to the views, I provide a hull 10 having mounted thereon a plu ality of. propeller shafts 11, 12, the Said shafts being operable in sleeves 13, 14

respectively and projecting downwardly and rearwardly from the hull 10, the propeller shaft 11 being adapted to extend beneath the rear end of the hull 10 and the propeller shaft '12 being adapted to extend beneath the hull 10 at a distance equal to approximately one-third of the length of the hull, taken at the rear end thereof. Secured to the propeller shaft 11 is a propeller 15 and secured to the propeller shaft 12 is a propeller 16, the propeller shaft 12 having the outer end thereof supported by a bracket 17, mounted to encircle the propeller shaft and secured to the under side of the hull. The upper ends of the propeller shafts 11, 12 are connected in any convenient manner with an engine 18 for the purpose of operating the propellers 15, 1G to propel the hull '10 through the water as will. be hercina'li'ter more fully disclosed.

Secured to the bow of the hull 10 is a main rod 15), the said rod being adapted to extend downwardly and rearwardly and then upwardly to connect with the stern of the hull, arms 20 being secured to the main rod 19 and having the ends thereof secured to the sides of the hull 1.0, reinforcing rods 21 being mounted to connect the arms 20, the said main rod 1t), arms 20 and reinforcing rods 21 constituting a skeleton guard 22, arranged immediately in front of the propeller 16 with portions of the guard extending rearwardly to partially inclose the propellers I15 and 10, thus preventing any foreign matter from coming in contact with the propellers and destroying the propelling action thereof.

lVhen the engine .18 is operated to drive the propellers 1.5 and 16, the action of the propeller 15 will be to propel the vessel forwardly through the water, while the propeller 16, arranged beneath the hull 10 and in the rear of the center thereof will raise the bow of the hull, thus lessening the resistance of the water against the hull and enabling the hull to move easily and smoothly through the water, it being readily understood that the propeller .1 it, aside from acting as a lifting medium will also aid in propelling the hullv forwardly. By referring to the views, it will be seen that the propeller 10 is placed beneath and to one side of the propeller 15 and by placing the propellers as mentioned, they will cooperate, one of the propellers being arranged to propel the vessel through the water, while the other propeller will lift the bow of the vessel and also aid the first-mentioned propeller in propelling the vessel through the Water.

Iclaim:

In combination With a hull, a plurality of propeller shafts revolubly supported theresecond shaft and arranged adjacent the medial portion of the hull beneath the same, and a skeleton guard carried by the hull to protect the said propellers, the said skeleton guard consisting of a series of rods disposed longitudinally of and to one side of the longitudinal center of the hull, cross pieces carried by the hull and disposed to opposite sides of the transverse center thereof and spaced therefrom, With one of the said rods projecting downwardly and rear- Wardly and thence upwardly to connect With the stern of the hull, the latter mentioned rod being disposed in spaced relation to and beneath the longitudinal center of the bottom of the hull, throughout the entire length of the bottom of the hull.

In testimony whereof I aflix my signature ERAsMo CAvIscHIo, PASQUALE PATELLA.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

